Analysis of green building technology promotion based on practical application and evaluation —A case study of Chongqing area

 From the development and evolution of the four evaluation systems of British BREEAM, American LEED, Japanese CASBEE and Chinese green building evaluation standard ESGB, analyses and summarizes the key points and development trends of green buildings. Taking Chongqing as an example, selects 72 actual projects that have passed the star certification in the past five years, calculates the technical utilization rate and scoring rate of residential buildings and public buildings respectively, and summarizes the characteristics, key points and deficiencies of actual technology application. Combining with the expert evaluation of each technology conducted through an online questionnaire, summarizes the economics and applicability of 35 key technologies. Based on the results of actual technology application and economic applicability, sorts out three major technology systems and puts forward some promotion approaches, such as incorporating mandatory requirements, increasing economic incentives, establishing local technology promotion systems and clarifying technical requirements.